Cap for a writing instrument



FIG. 1 is a perspective view as seen from the top, front and right side of a cap for a writing instrument showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right elevational view, the left elevational view being a mirror image thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view of a cap for a writing instrument of FIG. 1 with the writing tip exposed and the cap positioned on the bottom of the writing instrument barrel.

The broken line showing a writing instrument is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a “cap for a writing instrument,” as shown and described. 